Interpretation of efficacy from single-arm studies in patients with cerebral adrenoleukodsytrophy complicated by comparability with external controls and limited follow-up, FDA says in advisory committee briefing documents which also cite three cases of myelodysplastic syndrome and raise broader questions about lentiviral vector safety.
Differences between individuals in external control groups and patients who received bluebird bio’s elivaldogene autotemcel (eli-cel) in single-arm trials make it difficult to assess efficacy of the lentiviral vector gene therapy for pediatric patients with early cerebral adrenoleukodystrophy, the US Food and Drug Administration said.
In a briefing document released ahead of a 9 June meeting of the Cellular, Tissue and Gene Therapies Advisory...
A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
Recent and upcoming US FDA advisory committee meetings and a summary of the topics covered.
New marketing authorization applications filed with the European Medicines Agency's human medicines committee (the CHMP) for review under the EU's centralized procedure. Updated monthly.
Proposal to have panelists rate the strength of efficacy and safety evidence on a numeric scale also draws support in written comments on ways to optimize the advisory committee process.
A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
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Recent and upcoming US FDA advisory committee meetings and a summary of the topics covered.
